4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alaa Hleihel <[email protected]>

[ Upstream commit 4765420439e758bfa4808392d18b0a4cb6f06065 ]

mlx5 driver falsely advertises support of software timestamping.
Fix it by removing the false indication.

Fixes: ef9814deafd0 ("net/mlx5e: Add HW timestamping (TS) support")
Signed-off-by: Alaa Hleihel <[email protected]>
Reviewed-by: Tariq Toukan <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1167,11 +1167,6 @@ static int mlx5e_get_ts_info(struct net_
                             struct ethtool_ts_info *info)
 {
        struct mlx5e_priv *priv = netdev_priv(dev);
-       int ret;
-
-       ret = ethtool_op_get_ts_info(dev, info);
-       if (ret)
-               return ret;
 
        info->phc_index = priv->tstamp.ptp ?
                          ptp_clock_index(priv->tstamp.ptp) : -1;
@@ -1179,9 +1174,9 @@ static int mlx5e_get_ts_info(struct net_
        if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz))
                return 0;
 
-       info->so_timestamping |= SOF_TIMESTAMPING_TX_HARDWARE |
-                                SOF_TIMESTAMPING_RX_HARDWARE |
-                                SOF_TIMESTAMPING_RAW_HARDWARE;
+       info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+                               SOF_TIMESTAMPING_RX_HARDWARE |
+                               SOF_TIMESTAMPING_RAW_HARDWARE;
 
        info->tx_types = BIT(HWTSTAMP_TX_OFF) |
                         BIT(HWTSTAMP_TX_ON);


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